Ubercart 3.0 Beta 3 is the current release of Ubercart for Drupal 7.Ubercart 3.0 is installed on a bit over 2000 sites and we plan to release RC1 in September, 2011 along with an installation profile. To download Beta 3, go to http://www.ubercart.org/downloads.Ubercart: One Cart to Rule Them All. Changes since Ubercart 7.x-3.0-beta2:

API:

Add Ajax-enabled "uc_address" form element for full or partial address entry.

Handle temporary cart items with quantity of zero.

$item->data is consistently unserialized in hook_uc_cart_item().

'Default quantity to add to cart' is respected when quantity field is hidden.

Add hook_uc_payment_gateway_alter().

Add hook_uc_checkout_pane_alter().

Theme:

Pass order object to theme_uc_cart_complete_sale().

Default product image size increased from 100x100 to 250x250.

UI:

Converted all address forms to Ajax.

Date formatting is now handled by Drupal core settings.

Misc:

Purchased files with unlimited downloads cannot be purchased twice.

Added some SimpleTests.

Removed hard dependency on Rules.

Ordered new non-lethal shark lasers after unfortunate mishap in office.

Sorry. I talked to Lyle and Andy about it and they felt like that was a good time-frame to try to get out RC1. I should have sent you a message first to see how it fits your schedule. I just kind of assumed they had a good handle on the status of the code for 3.0. Do you think September is doable for you? Lyle's impression was that Beta 3 was pretty close so it would not be too difficult to take it to RC.